Liquid dispenser

ABSTRACT

A liquid dispenser comprising a container having relative rotatable parts, and within the container a cylinder and a piston movable relative to each other and forming a chamber. The cylinder or piston being moved by the relatively rotatable part of the container, and when so moved, filling the chamber with a fluid contained in the container. The fluid is placed under pressure in the chamber and is dispensed from that chamber upon actuation of a valve. There is also a means on the container for locking the valve in inoperative position.

llnited States Patent [1 Capra et al.

[ 1 Feb. 19, 1974 LIQUID DISPENSER [76] Inventors: Nicholas G. Capra,467 Dellavan Ave., Newark, NJ. 07109; Vincent Toth, 1.20 Midland Ave.,Stanhope, NJ. 07874 [22] Filed: July 6, 1972 [21] Appl. N0.: 269,452

[52] US. Cl 222/43, 222/153, 222/321, 222/340, 239/329 [51] Int. Cl B67d5/32 [58] Field of Search 222/43, 44, 309, 321, 340, 222/341, 380, 385,386, 402.11, 424, 153; 237/333, 337, 331, 329, 373; 137/5135 [56]References Cited UNITED STATES PATENTS 3,471,065 10/1969 Malone 222/3211,997,365 4/1935 Howard 137/5135 2,600,187 6/1952 Bart 137/51352,686,652 8/1954 Carlson et al.,.. 222/153 X 3,101,751 8/1963 Ballin222/43 X 3,514,017 5/1970 Malone 239/333 X 3,506,164 4/1970 Weichselbaumet al 222/340 FOREIGN PATENTS OR APPLICATIONS 768,271 2/1934 France222/386 Primary E xaminerRobert B. Reeves Assistant Examiner-Joseph J.Rolla Attorney, Agent, or FirmLuke A Mattare et al.

[5 7 I ABSTRACT A liquid dispenser comprising a container havingrelative rotatable parts, and within the container a cylinder and apiston movable relative to each other and forming a chamber. Thecylinder or piston being moved by the relatively rotatable part of thecontainer, and when so moved, filling the chamber with a fluid containedin the container. The fluid is placed under pressure in the chamber andis dispensed from that chamber upon actuation of a valve. There is alsoa means on the container for locking the valve in inoperative position.

33 Claims, 19 Drawing Figures LIQUID DISPENSER BACKGROUND OF THEINVENTION Containers of material, such as fluids, i.e., insecticides,perfumes, herbicides, hair sprays, are placed in the container togetherwith a gas propellant and are expelled from the containers upon theoperation of a valve under the pressure of the propellant. Most of thesubstances contained in the container, together with the gas propellant,are toxic and injurious to the health of a human being. Further, thecontainer cannot stand a high degree of heat and will explode due to theheating and expansion of the gas propellant. This is likewise injuriousto anyone near the container when it explodes. The so-called spraycontainers are also injurious to small children because of their ease ofoperation. A small child operating the valve would not know enough todirect the spray nozzle away from his face or body, thereby getting thefull force of the material and the propellant gas thus causing seriousinjury.

SUMMARY OF THE INVENTION This invention relates to a container for fluidand for the discharge of that fluid under pressure.

The object of the invention is to have a container for the storage of afluid which may be refilled and mechanism within the container operatedby rotating one part of the container relative to another part whichrotation will enlarge a chamber which by virtue of that enlargement willdraw by suction a quantity of the fluid in the container into thechamber. When the chamber is full, the contents thereof are under springpressure; and when a valve on the outside of the container is actuated,the fluid in that chamber will be dispensed therefrom by the pressurethereon either in the form of a spray or a pouring of the liquid from aspout.

Another object is to have the chamber of such size that a relativelysmall amount of the liquid will be drawn into the chamber and whichamount can be dispensed from the container in a predetermined timeaccording to the size of the chamber; and when the chamber is empty, itmust be reactivated to again fill the chamber. Should any fluid remainin the chamber, it will gradually leak by a valve means back into thecontainer through the pressure means on the fluid.

Still another object of the invention is that the amount of movement ofthe cooperating means may be so adjusted that a predetermined amount offluid may be drawn into a larger chamber and dispensed therefrom.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of thecontainer used in this invention.

FIG. 2 is a cross-sectional view of FIG. 1, taken on line 22 in FIG. 1.

FIG. 3 is a cross-sectional view taken on line 33 of FIG. 2.

FIG. 4 is a cross-sectional view taken on line 44 of FIG. 2.

FIG. 5 is a view similar to FIG. 2, but showing the action ofdispensing.

FIG. 6 is an exploded view of the cooperating parts for operation of thedispensing means shown in FIG. 2.

FIG. 7 is a lay out of the cam, which is a part of the cooperatingmeans.

FIG. 8 is a cross-sectional view of a modification of the cooperatingmeans and dispensing means.

FIG. 9 is an exploded view of the mechanism shown in FIG. 8.

FIG. 10 is a cross-sectional view taken on like 10-10 of FIG. 8.

' FIG. 11 is still a further modification, showing a different type ofcooperating means.

F IO. 12 is a cross-sectional view taken on line l2l2 of FIG. 11.

FIG. 13 is a view partially in cross-section showing one type of checkvalve used in the dispensing means.

FIG. 14 is a view similar to FIG. 14, showing a different type of checkvalve.

FIG. 15 is a perspective view of a dispenser for dispensing apredetermined amount.

FIG. 16 is a cross-sectional view taken on line 16-16 of FIG. 15.

FIG. 17 is a cross-sectional view taken on line 17l7 of FIG. 16.

FIG. 18 is an exploded view of the cap and cooperating parts for thesetting of dispensing a predetermined amount, and

FIG. 19 is a view of the cap and setting lever.

DESCRIPTION OF THE EMBODIMENTS A container for fluids and for dispensingthe same, generally indicated at 10 is provided with a body part 11, atop part 12, and a bottom part 13. The top part 12 has on the upper wall23 thereof, a dispensing nozzle 14, which when depressed, will open avalve 15 thus allowing the fluid within the container to be dispensed ina manner hereinafter described. Also in the top wall, there is provideda depressed portion 16. The depressed portion has side walls 17 and 18which are slightly undercut to provide a groove. Mounted within thegroove is a slide 19 which is movable in the groove by reciprocating thesame through engagement by a finger with the rib 20. One end of theslide 19 has a bifurcation 21. The slide when moved from right to leftwill place the bifurcation 21 under the valve operating member 14, thuspreventing depression of that member and operation of the valve 15. Bymoving the slide 19 in the reverse direction, the valve operating member14 can be depressed, thus opening the valve 15.

The body part 1 l of the container is of hollow tubular structure andmay be made of plastic, metal or glass. The top part 12, also made ofplastic, metal or glass, is mounted upon one end of the body part 11 bya slip joint 25 as shown in FIG. 2 and is sealed in that relationship.The joint between the top part and body part may be of any type,commensurate with the material being used, whereby a rigid sealed jointmay be made.

The bottom part 13 is formed of a generally cupshaped configurationhaving a base 26 and a side wall 27. A groove 28 is formed in theinterior of a side wall intermediate the height thereof. The body part11 has formed on the outer surfaces thereof near the other end a rib 29which engages the groove 28. The bottom cap or part has an internaldiameter in the side wall 27 of substantially the same diameter as theouter wall of the body part 11, and being of this diameter with the rib29 seating in the groove 28 and the end of the body part 1 1 seatingtightly against the base 26, seals the bottom part to the body part withsufficient tightness to prevent the liquid contents of the containerfrom leaking at the juncture but still allowing rotation of the bottompart relative to the body part. The base of the bottom part is providedwith a heavy portion extending from the center radially outward towardthe side wall 27. This heavy portion 30 provides between the outercircumference thereof and the side wall a groove 31 into which the otherend of the body part 1 l is seated.

The base of the bottom part also has an opening 32 therein whichcomprises a sealed opening by which liquid may be poured into thecontainer and. through which the container may berefilled after theliquid within the container has been used and dispensed. The opening isclosed by a screw 33, and head of which seats in a countersink 34 sothat the screw is flush with the outer surface of the bottom part. Whilethere is shown the rib and groove connection between the bottom part andthe body part, any other type of connection may be used, such as bothparts having grooves therein with an O-ring filling the grooves. Anytype of connection which will allow the sealing of that connection andthe rotation of one part relative to the other part may be used.

Concentrically mounted upon and integral with the base 26 is anupstanding sleeve 36 having at its upper end a cam 37. The cam hasdiametrically opposed high points 38 and 39 and low points 40 and 41also diametricallyopposed and intermediate the high points with slopingcam surfaces 42 and 43 extending between the high point and the lowpoints on one side of the high points and having vertical surfaces 44and 45 on the other side of the high points. As was previously stated,the sleeve 36 is integral with the bottom part 26 and having theaforesaid cam surfaces on the upper part thereof is rotatable with thebottom part. Mounted upon the base 26 and extending upwardly therefromin the container and concentrically within the sleeve 36 is a piston rod48. The piston rod has at its lower end a head 49 which is embedded inthe thickened part or heavy part 30 of the bottom part. This mountinggives rigidity to the piston rod and rotates the piston rod with thebottom part. A piston 50 is rigidly mounted on the upper end of thepiston rod 48. The piston 50 has a seal ring 51 mounted on the outersurface thereof. The top part 12 carries the guide 55 extending from thelower part thereof into the body part. The guide 55 has a groove orchannel 56, the "channel facing inwardly toward the center of thecontainer. A head 57 having 'a rib 58 extending along one side wallthereof is guided by the rib 58 engaging in the channel 56 and havingvertical movement therein. The head 57 is substantially cup-shaped andis inverted with the base 59 extending toward the cap part and having adownwardly extending side wall 60. Sealed within the cup-shaped head isa downwardly extending sleeve 61. The upper end 62 of the sleeve 61 'isopen and fitted within the cupshaped head member 57, engaging the baseon the inside thereof and the inner surface of the side wall 60. Thelower part of the sleeve 61 has a reduced wall portion 63 and extendsinto the upper part of the lower cam 37. The lower end 64 of the sleeve61 is thickened into a head portion and is engaged with the piston rod48 and is slidable thereon. Extending upwardly from the head portion 64through the wall portion 63 and into the lower part of the wider sleeve61, the sleeve is spaced from and concentric with the piston rod 48 andprovides a chamber 65. Mounted within the chamber 65 is a coil spring66, one end of which bears against the underside of the piston 50 andwith the other end bearing against the head portion 64 of the sleeve.Surrounding the upper portion of the reduced part 63 of the sleeve andintegral therewith is a cam surface 67 comprising the upper cam. The cam67 has high points 68 and 69 and low points 70 and 71. The cam isdirectly opposite the lower cam 37, and when the two parts of the camare engaged, the high points 68 and 69 will be in engagement with thelow points 40 and 41 and likewise the high points 38 and 39 will be inengagement with the low points 70 and 71. The sleeve 61, as was statedabove, is hollow in the upper part thereof and forms with the head 57 acylinder or chamber 72, which cylinder moves through the influence ofthe cam with respect to the piston 50 which is held stationary aspreviously described. Extending from the chamber through the head is apassageway 73. The passageway at the other end thereof is connected witha valve housing 74, having a check valve therein. Extending downwardlyfrom that housing 74 is a passageway 76. The lower end of the valvehousing 74 has sealed therein a tube 77, which is flexible and whichextends downwardly onto and in engagement with the inner surface of thebottom part 26. The lower end 78 is open and lying within the fluidcontained in the container. The valve housing 74 has another flexibletube 79 ex tending upwardly to a dispenser valve housing 80. Thedispenser valve 15 is within the housing 80 and is operated by theoperating member 14 as previously described.

The device as shown in FIG. 2 discloses the chamber 72 filled withliquid, while as shown in FIG. 5, a portion of tha liquid has beendispensed. When all of the liquid contained in the chamber 72 has beendispensed, the head 57 and the sleeve 61 will have moved downwardlyunder the influence of the spring 66 to a point wherein the head is inengagement with the piston 50; and at this point, the high points 68 and69 of the upper cam are in engagement with the low points 40 and 41 ofthe lower cam. If it is desired to recharge the chamber 72, the bottompart 26 is rotated relative to the body 11 thus causing the slopes 42and 43 to ride along the high points 68 and 69 causing the sleeve 61 andthe head 57 to move upwardly toward the cap 12 and compressing thespring between the head 64 of the piston 60. By this movement a vacuumis produced in the chamber 72 which will cause a vacuum in the tube 77which in turn will draw the liquid into the opening 78 through the tube77 by the valve 75 through the passage 73 into the chamber 72, thusfilling the chamber. 'When the various parts are in the position asshown in FIG. 2, the container is then ready for dispensing of thecontents within the chamber 72. The contents being under the pressure ofthe spring will cause the check valve 75 to close the tube 77 and thepassageway 76 and upon operation of the valve 15 by the operating member14, the material within the chamber 72 will be sprayed outwardly to thedesired point of usage. The size of the chamber 72 controls the amountof the liquid which is sprayed and the time of the period of dispensing.Here again, the size of the chamber is controlled by the size of thecontainer. The normal size container for liquids to be sprayed willallow a time period of less than a minute, but a longer time period maybe had with a different size chamber.

A modification of the heretofore described dispenser is shown in FIG. 8,wherein any type of a container is used. The container has an opening 86in theupper part thereof. The opening is surrounded by a lip 87 or, infact, may have any type of opening to which a cap or other type ofclosure member 88 may be applied and sealed thereto. The container 85has a side wall 89 and a bottom wall 90, all integral. The container 85,however, is not limited to this particular type of container in that thebottom 90 may be seamed to the side wall in the same manner as closingan ordinary can.

Mounted on the underside of the cap 88 or otherwise affixed thereto isan inverted cup-shaped member 91 having a double cam surface 92 on thelower surface thereof. The double cam surface will have two high pointsand two low points substantially similar to that shown in FIG. 7. Thebase 93 of the cup has a central opening 94 therein, which opening isround. The cap 88 has a like round opening 95 therein coinciding withthe opening 94. Extending through the openings 94 and g 95 is a pistonrod 96 Fixed to the upper end 97 of the piston rod 96 is a spray headand operating member 98. The lower surface 99 of the spray head isprovided with a socket 100 into which the upper end 97 of the piston rod96 fits and is sealed thereto. Also in the spray housing 98 is apassageway 101, a valve housing 102 and a combined nozzle and valveoperating member 103. The housing 102 may contain any type of a springpressed check valve, which when the spray nozzle 103 is operated, willin turn operate the valve. The spray nozzle 103 is latched againstoperation by the latch 104 which is constructed and operated in the samemanner as the latch slide 19 previously described.

The cup-shaped member 91 has a second opening 105 larger in diameterthan the previously mentioned opening 94. Slidingly received in theopening 105 is a hub 106. The hub 106 has a round outer surface 107which fits in the opening 105 but is rotatable and reciprocable therein.The hub 106 has an opening 108 through the center thereof, engaging thepiston rod 96 and is slidable thereon. The lower end 109 of the hubextends outwardly and downwardly to form a cylinder 110. The lower end111 of the cylinder is opened and has slidably mounted within thecylinder a piston 112 carried by the lower end of the piston rod 96. Thepiston 112 carries a seal means 113 which seals the piston in itsoperation within the cylinder 110. The inner surface 114 of the pistonhas bearing against it a coil spring 115. Theother end of the coilspring 115 bears against the inner surface 116 of the upper end of thehub 106. Surrounding a portion of the hub 106, the entire cylinder 110and enclosing the piston 112 in a housing 117, the upper end of which isprovided with a cam surface 118, which surface is complemental to thecam 92. Extending through the piston rod is a passageway 119, whichpassageway is connected to the passageway 101 in the spray head andoperating member 98. The lower end of the housing 117 is closed by acover 120 which becomes the end of the fluid chamber upon operation ofthe cylinder by the cams. The cover 120 has an opening 121 therein. Atube 122 extends downwardly from the opening 121 and is connectedthereto and extends into the bottom of the container so that any fluidin the container may enter through the tube into the chamber 123. Theupper end of the tube 122 has a valve housing 124 containing a checkvalve 125.

As has been previously stated, this particular dispensing mechanism asshown in FIG. 8 may be attached to any type of container such as abottle or a can which has an open mouth or end. All of the dispensingmechanism is first assembled on a cap or cover for the container and isthen inserted into and on the container with the cap or cover beingsealed thereon. By rotating the spray head nozzle and the operatingmember 98, one-half turn or less, the housing 117 is moved downwardly asshown in the dotted lines by virtue of the cam surface 118 engaging thecam surface 92 and being forced downwardly by the rotation of the cam118 relative to the cam 92. The housing 117 and the cylinder beingforced downwardly by operation of the two cams will move the housing andcylinder downwardly away from the head of the piston 112 and against thepressure of the spring 1 15. This movement causes avacuum in the chamber123 thus produced by such movement, and this vacuum will cause liquidwithin the container to pass through the tube 122 by the check valve 125into the chamber 123. Upon rotation of the spray head and operatingmember 98, the chamber 123 will be filled with a predetermined quantityof fluid. Then by operation of the nozzle 103, the fluidwill bedispensed through the passageway 119 by the valve in the housing 102 andoutwardly through the nozzle. The pressure to move the fluid is producedby the pressure of the spring acting against the head 112 of the pistonto force the housing 117 and the cylinder 110 upwardly toward the pistonhead 112.

As previously described, the size of the chamber 123 controls the amountof fluid which will be dispensed and the length of time it takes todispense that particular amount of fluid. When the chamber is empty itis only necessary to again rotate the spray head and operating member 98to recharge the chamber 123.

A further modification of the dispensing device is shown in FIGS. 11 and12, wherein a container is used having side wall 131, a top wall 132 andan open bottom 134. The open end of the container 134 is closed by a cap135 having side flange 136. The side flange has a groove 137 and thecontainer near the end thereof is provided with a rib 138. The rib andgroove providing the seal between the cap and the container. The cap hasa fill opening 139 closed by a screw 140 through which the container maybe refilled with the liquid after the contents thereof have beendispensed. Mounted on the inner wall 141 of the side wall of thecontainer and affixed thereto is a cylinder 142. The cylinder 142 ismounted on the inner wall 141 by being cemented to or otherwise affixedto asemicircular shaped pocket 143 which may be integral with the innerwall 141. The cylinder 142 is of arcuate formation and extendsapproximately 1/2 of the circumference of the inner wall 141. Thecylinder has a closed end wall 144 at one end thereof and a partiallyclosed wall 145 at the other end thereof. The wall 145 has an opening146 therein through which a piston rod 147 extends. The piston rod 147has a piston 148 on the end extending into the cylinder. A coil spring149 has one end thereof bearing against the piston 148 and the other endbearing against the partially closed wall 145. The piston rod 146 isalso arcuate in shape and has the end opposite to the piston head 150connected to an upstanding post 151 which upstands from and is connectedto the cap 135. Adjacent the closed end of the cylinder is an opening152 to which is connected a tube 153. The tube 153 extends upwardly tothe top wall 132 of the container to a valve housing 154. A spray nozzle155 and valve wall 132 and when depressed will operate the valvecontained in the housing 154. A locking slide 156 of the same type aspreviously described is mounted on a the outside of the top wall 132 andwhen placed under the spray nozzle 155 will prevent operation of thesame. Extending also from the cylinder 142 adjacent the closed endthereof is a valve housing 157 having a check valve 158 therein.Extending from the valve housing 157 is a filltube 159, the free end ofwhich is open and lying .On the bottom cap of the container.

By rotating the cap 135 in a counter clockwise direction relative to thecontainer 130, the piston 148 is drawn toward the partially closed end145 of the cylinder by virtue of the free end of the rod being connectedto the post 151. This action of the piston with respect to the cylindercreates a vacuum therein, thus causing a suction within the tube 159through the check valve 158 into the cylinder. This suction causes thefluid contained in the container to be drawn into the cylinder. Also,the movement of the piston 148 in this manner compresses the spring 149.When. the piston has reached the end of its stroke, the cylinder is nowcharged witha predetermined amount of fluid. By manipulation of thespray nozzle 155, the valve in the housing 154 is operated, thusallowing the pressure of the spring 149 upon the contents of thecylinder to be forced upwardly through the tube 153 and out through thespray head 155.

The size of the cylinder and piston may be varied so that differentpredetermined amounts may be drawn into the cylinder and also the extentof the rotation of the cap 135 will move the piston predeterminedamounts to likewise effect a predetermined charge in the cylinder.

A further safety feature is incorporated in the dispenser; and, moreparticularly, in the check valve in the fill tube which allows the fluidcontained in the container to flow into the chamber when the containeris manipulated to fill the chamber, but which will prevent flow of theliquid back into the container when the same is being discharged fromthe chamber. Such feature is incorporated in the check valve itself; andalthough disclosed in the position and shape of the housing in FIGS. 2and 5, it may also be used in connection with the other figures.

F 1G. 13 discloses a poppet-type check valve 162 mounted in the housing163. The valve 162 has a stem 164 and a head 165. The head is providedwith a beveled side 166. The valve chamber 163 is provided with abeveled side wall 167. The bevel of the valve 166 and the bevel of theseat 167 are not exactly complementary. However, they are complementaryenough so that the valve is practically seated to prevent backflow whenthe discharge valve is opened but which will allow a slow leak back orflow back into the container when any fluid is left in the chamber andthe container is not being operated but has been placed on a shelf.

The form disclosed in FIG. 14 discloses a ball-type check valve 170,having minute depressed areas 171 on the surface thereof. In using thistype of valve with the minute depressed areas on the surface thereof, nomatter when the valve is contacting the seat 167, there will always beat least one depressed area at the seating portion. Such depressed areawill, therfore, allow a slow feed back of the luqiid from the chamberinto the container when the container is placed on a shelf with some ofthe fluid still in the chamber.

Thus, it will be noted that any fluid contained in the dispensingchamber is under the pressure of the spring between the moving part andthe fixed part constituting the chamber. As long as the dispensing valveand nozzle are being operated, the fluid will be forced outwardlythrough the nozzle by the spring pressure. Should there be, however, anyfluid remaining in the chamber after operation of the dispensing valveand nozzle and the container placed on a shelf and further if thedispensing nozzle and valve operating member is not latched asheretofore described, there is a danger that a child or other personupon picking up the container and operating the dispensing valve mightbe put in the position of a danger upon dispensing of the remainingfluid in the chamber. By making the check valves as shown and describedin connection with FIGS. 13 and 14, the pressure of the spring upon thecontents of the chamber will cause that fluidto flow back past the checkvalve and into the container. Thus, in a short period of time, thechamber will become empty of any fluid, thereby reducing the hazard ofinjury to a child or person picking up the container and operating thedispensing nozzle.

A further modification of the dispenser is shown in FIGS. 15 to 19,inclusive, wherein a predetermined amount or a measured amount of theliquid within the container may be dispensed by means of setting anindicator on the preferred amount and rotating the top of the mechanismclockwise until it is stopped and then by actuating a valve, the desiredamount will be dispensed in accordance with the setting of the desiredamount.

There is shown in FIG. 15, a bottle 175 having an elongated neck 176closed by a cap 177 and mounted on the cap is an operating member 178having a flow opening 179 therein. The operating member having thereon aseries of valuations 180, which valuations may stand for fluid ounces orany other particular measurement commensurate with the contents of thebottle 175. The operating member 178 is substantially solid and has atop wall 181, a side wall 182, and a bottom wall 183. Extendingdownwardly from the graduations 180 on the side wall 182 and from eachgraduation are series of lines 184. The bottom wall 183 has a series ofnotches 185 cut therein, each notch being at the base of each line 184.Spaced inwardly from the outer wall 182 and extending into the body 178on the bottom wall 183 is an opening 186. A lever 187 having a pin 188adjacent one end 189 is pivotally mounted on the bottom wall 183 byinserting the pin 188 into the opening 186. The other end 190 of thelever 187 has a rib or protuberance 191 thereon which during operationof the device engages the notches 185. By moving the lever 187 into thedesired notch for the particular evaluation or indication, that amountof fluid can be dispensed through the opening 179 in the operatingmemher 178. The lever 187 also acts as a stop member for rotating theoperating member 178 a distance to actuate the operating mechanismwithin the neck of the bottle to draw into a chamber the amount ofliquid desired to be dispensed and then to dispense that desired amount.

Mounted on the underside of the cap 177 is an operating mechanism 192which may be similar in all respects to the mechanism disclosed anddescribed in FIG. 8. The dispensing mechanism 192 is fitted within theneck 176 and one part thereof is rotatable within the neck. Affixed tothe underside of the cap 177 is an inverted cup 193 having on the lowersurface thereof, one part of a cam 194. The cup-shaped member 193 has acircular opening 195 therein into which extends a hub 196 which isrotatable in the opening. Extending downwardly from the hub 196 is acylinder 197 having at the lower end thereof a piston 198. Surrounding aportion of a hub and all of the cylinder is a housing 199 having aclosure wall 200 at the lower end thereof which closes the lower end ofthe cylinder. The upper surface of the housing 199 is provided with acam surface 201, which is complemental to the cam surface 199 on thecup-shaped member 193. Mounted within the cylinder is a coil spring 202,one end of which bears against the end of the cylinder 203 with theother end bearing against the piston 198 and maintaining the piston inthe position shown in FIG. 16. Connected to the piston is a piston rod204, which rod is square in formation. The piston rod extends upwardlythrough the hub 196 through the inverted cup 193, which has a circularopening therein, and through the cap 177 which has a like circularopening therein. The upper end of the piston rod 204 is fitted into theoperating member .178 in the same manner as shown in FIG. 8. Uponturning the operating member 178 in-a clockwise direction after settingthe lever 187, the cam surface 201 will ride downwardly on the camsurface 194 which in turn will force the cylinder 197 downwardly andcompressing the spring 202 against the head of the piston. Such acasmuchas the operating member 178 will only be moved a predetermined distancein accordance with the setting of the lever 187. By operation of thefinger piece 207 on top of the operating member 178, a valve containedin the housing 208 will be opened, thus allowing the contents in thepassageway 209 in the piston rod to be dispensed through the opening 179into a container 210.

In order to limit the amount of rotation of the operating member 178 andto also cause it to return to its normal position, there is mounted onthe cap 177 a tube 211. The tube 211 has each end thereof closed bywalls 212 and 213. Contained within the tube is a coil spring 214. Oneportion of the tube 211 has a slot 215 cut therein substantially thefull length thereof. Carried on the bottom wall 183 of the operatingmember is a pin 216 which extends downwardly into the slot and isengaged by one end of the coil spring 214. Upon setting the lever 187for the desiredamount to be dispensed from the container and rotatingthe operating member 178, the pin 216 will compress the spring 214within the tube 211 until such time as the lever 187 engages the end 213of the tube 211. When this happens, the operating member 178 is releasedand the spring will force it back to its normal position. During theturning of the operating member 178, the desired amount of the fluidcontained within the bottle will be pumped into the chamber. Uponoperation of the finger piece 207, that amount of fluid will then bedispensed through the opening 179.

As this invention may be embodied in several forms without departingfrom the spirit or essential characteristics thereofythe presentinvention is "therefore illustrative and not restrictive, since thescope of the invention is defined by the appended claims rather than bythe description preceding them, and all changes that fall within themetes and bounds of the claims or that form their functional as well asconjointly cooperative equivalents, are therefore intended to beembraced by those claims.

What is claimed is:

1. A dispensing container for liquids, said container having a side walland opposite ends, a liquid dispenser on one end of said container, acylinder mounted in said container, a piston in the cylinder mounted forrelative reciprocation between the piston and cylinder, said piston andcylinder defining a chamber for liquid to be dispensed, a first conduitconnected with said cylinder and in communication with said chamber,check valve means in said first conduit to enable flow through saidconduit to said chamber and prevent reverse flow therethrough, a secondconduit connected at one end thereof with said cylinder in communicationwith said chamber and connected at its other end with said dispenser, amanually operated, normally closed valve means in said second conduit tonormally prevent flow of liquid from said chamber and operable to enableflow from said chamber to said dispenser, a spring means engaged betweensaid piston and cylinder to urge relative reciprocation between saidpiston and cylinder to pressurize liquid in said chamber and dispensesaid liquid through said dispenser when said valve in said second coduitis open, manually operable, rotatable operating means carried by saidcontainer externally thereof, a piston rod connected at one end thereofto said piston and extending axially from said cylinder and connected atits other end to said operating means, so that relative rotation betweensaid container and said operating means causes relative reciprocationbetween said piston and cylinder to compress said spring and enlargesaid chamber to draw liquid thereinto for subsequent dispensing of saidliquid when said manually operated valve is opened and said springexpands to pressurize the liquid in said chamber.

2. A dispensing container as in claim 1, wherein the opposite ends ofthe container comprise top and bottom parts of the container, one ofsaid parts comprising the rotatable operating means.

3. The container as in claim 2 wherein adjustment means is associatedwith the rotatable part to limit the rotation to dispense a measuredquantity of the liquid.

4. The container as in claim 3 wherein the rotatable part is the toppart, the adjustment means is a lever pivotally mounted on the top part,the lever engaging indicating means on the top part and stoppingrotation of the top part at a preset point in accordance with theindicating means, and means operatively connected with the top part toreturn the top part to original position.

5. The container as in claim 3 wherein the rotatable part is the toppart, indicia carried by the top part to indicate measured quantities,notches in the top part adjacent each indicia, the top part having anopening therein, a lever having a pin adjacent one end, the pin beingreceived in the opening thus pivotally mounting the lever on the toppart, the lever having a rib adjacent the other end, the rib engaging inthe notches, the lever engaging a stop on the container to limit therotation of the top part and thus limit the amount of liquid in thechamber to a pre-set quantity and resilient-meansoperatively connectedwith the top part to return the top part to original position.

6. The container as in claim 3 wherein the container is provided with acap and the top part is mounted on the cap and rotatable in relationthereto, a slotted tube mounted on the cap, a spring within the slottedtube, the top part having a .pin extending therefrom and through theslot intothe tube, the adjustment means comprising a lever pivotallymounted on the top part, indicia means on the toppart, notches in thetop part adjacent each indicia, the lever having a rib thereon engagingin the notches, the lever being set in the desired notch and the toppart being rotated, the lever engages the slotted tube to stop therotation of the top part thus effecting movement of one of the membersto draw into the chamber the desired quantity of liquid, upon release ofthe top part the spring will return the top part to originalposition'and the desired quantity dispensed through the discharge means.

7. The container as in claim 2 wherein the container is a bottle havingan elongated neck and a mouth, a cap covering the mouth, the cylinderand piston being within the neck, the operating means comprising astationary cam mounted on the underside of the cap and a rotatable camhaving a face complementaryv to the stationary cam, the piston rodextending upwardly through the cap and connected with the top part, saidtop part being rotatable, the cylinder being within the rotatable camand reciprocated by the rotation of the cam, the piston rod extendingthrough the rotating cam and into the cylinder, the spring meanscomprising a coil spring within the cylinder, one end of the springbearing on the cylinder and the other end bearing on the piston, saidfirst conduit connected at one end to the cylinder and the other endbeing on the bottom of the container, the top part having indiciathereon indicating predetermined quantities of liquid, notches on thetop part adjacent each indicia, a lever pivotally mounted on the toppart, the lever-being mounted at one end thereof and having a rib at theother end, the rib engaging in one of the notches to set the quantity, atube mounted on the cap and having a slot therein, a coil spring withinthe tube, the toppart having a pin extending downwardly therefrom andinto the: slot, the pin being in engagement with the coil spring of thetube at one end thereof, said cams reciprocating the cylinder uponrotation of the top part to draw liquid into the cylinder, said leverengaging one end of the tube to stop rotation of the top part when thepredetermined quantity is drawn into the cylinder, and said top part,when released, returned to its original position by the coil spring inthe tube, and upon operation of the valve in the second conduit, suchpredetermined quantity will be dispensed from the cylinder.

8. The container as set forth in claim 2 wherein the bottom part is theoperating means.

reciprocation of the cylinder but preventing rotation thereof.

12. The container as in claim 9 wherein the top part supports thecylinder, the cylinder being reciprocated relative thereto.

13. The container as in claim 12 wherein the cylinder has a cam memberassociated therewith, the cam being reciprocated with the cylinder.

14. The container as in claim 2, wherein the operating means comprisescooperative cam members associated with the piston and cylinder.

15. The container as in claim 14 wherein the cam member associated withthe piston member-is rotated by the bottom part.

16. The container as in claim 14 wherein the cam member associated withthe cylinder is reciprocated by the rotation of the cam memberassociated with the piston.

17. The container as in claim 16 wherein the cylinder is reciprocatedand moved away from the piston by the rotation of the cam memberassociated with the piston thus enlarging the chamber and drawing in thefluid into the chamber from the container.

18. The container as in claim 1 wherein the first conduit has a free endin the bottom of the container.

19. The container as in claim 18 wherein the check valve means has meansthereon allowing slow by-pass of the liquid from the chamber to thecontainer when any liquid remains in the chamber after a dispensingoperation.

20. The container as in claim 19 wherein the check valve comprises apoppet valve having a bevel face and reciprocable in a conically shapedvalve housing, the bevel face being substantially complementary to theconical shape but allowing by-pass of any liquid left in the chamber toreturn to the container when the container is not in use.

21. The container as in claim 19 wherein the check valve comprises aball reciprocable in a conically shaped valve housing, the ball havingminute depressions on the surface thereof, the depressions allowingby-pass of any liquid left in the chamber to return to the containerwhen the container is not in use.

22. The container as in claim 2 wherein valve operating means for themanually operated valve means extends above the top part, the top parthaving a locking means thereon, the locking means engaging the valveoperating means and preventing operation thereof.

23. The container as in claim 2 wherein the piston rod is mounted on thebottom part and rotated thereby, operating means including a first cammounted on the bottom part and rotated therewith, the cylinder iscarried by the top part, a second cam associated with the cylinder andoperatively interengaged with the first cam, the second cam beingreciprocated by the rotation of the first cam and reciprocation of thesecond cam reciprocating the cylinder, the cylinder having an extensionthereon surrounding the piston rod and being reciprocated with thecylinder relative to the rod, the spring means comprises a coil springsurrounding the piston rod with one end bearing against the piston andthe other end bearing against the extension of the cylinder, the springbeing compressed upon reciprocation of the cylinder said first conduithaving a free end resting on the bottom of the container, thereciprocation of the cylinder drawing the liquid within the containerinto the chamber where it is placed under the pressure of the compressedspring, and said check valve in the conduit holding the liquid in thechamber until operation of the manually operated valve means todischarge the liquid from the chamber under the pressure of the spring.

24. The container as in claim 2 wherein the container has a coverthereon, the piston and cylinder being mounted on the underside of thecover, the top part being mounted on the outside of the cover, thepiston rod extending through the cover and connected to the top part,rotation of the top part rotating the piston, and operative meansconnected with the piston and the cylinder and being rotated by therotation of the piston and reciprocating the cylinder relative to thepiston.

25. The container as in claim 24 wherein the operative means comprises afirst cam stationarily mounted on the under side of the cover, and asecond cam rotated by the piston rod and the top part, the rotation ofthe second cam causing reciprocation of the cylinder through thereaction of the two cams relative to one another.

26. The container as in claim 24 wherein the piston rod is of a squareshape with the free end seated in a socket in the top part, the coverhaving a round opening through which the rod extends, the operativemeans comprises a first cam attached to the under side of the cover, thefirst cam having a round opening extending therethrough and coincidingwith the opening in the cover, the cylinder having an extension thereonextending into the first cam and being rotated relative thereto by thepiston rod, a second cam surrounding the cylinder and rotated by thepiston rod with the extension, the complementary surfaces of the camscausing reciprocation of the second cam relative to the first cam, thereciprocation of the second cam causing reciprocation of the cylinderrelative to the piston and drawing liquid into the chamber, and saiddischarge means being on the top partto discharge the liquid in thechamber.

27. The container as in claim 26 wherein the spring means comprises acoil spring within the cylinder, the cylinder having a closed base atthe extension, the spring having one end bearing upon the base and theother end bearing upon the piston, the spring being compressed by thereciprocation of the cylinder relative to the piston.

28. The container as in claim 2 wherein the container has an open mouth,a cover sealing the mouth, the top part being mounted on the outside ofthe cover, the top part being rotated relative to the container, thecylinder and piston being mounted on the under side of the cover, thecylinder being reciprocated by the rotation of the top part, theoperating means including a first cam fixedly mounted on the undersidevof the cover, and a second cam rotated by the rotation of the top part,the two cams having complementary engaging surfaces, the piston rodhaving a square cross section and extending through the cover, the toppart having a socket therein receiving the free end of the rod, thecover having a round opening therein, the first cam having a roundopening therethrough and coinciding with the opening in the cover, therod extending through the openings and being rotatable therein, thecylinder having a base and an extension extending upwardly from thebase, the extension having a square opening therethrough, the rodextending through the square opening and rotating the cylinder uponrotation of the rod, the second cam surrounding the cylinder and rotatedtherewith, the rotation of the second cam and cylinder reciprocating thecylinder relative to the piston, the spring means comprising a coilspring mounted within the cylinder, one end of the spring bearingagainst the base and the other end bearing against the piston and beingcompressed by the reciprocation of the cylinder, said first conduithaving one end connected to one end of the cylinder and a free endresting on the bottom of the container, and said check valve being insaid one end, the liquid being drawn into the chamber by thereciprocation of the cylinder and placed under pressure therein by thecompression of the spring.

29. The container as in claim 1 wherein the container comprises a sidewall, a top wall and a rotatable bottom wall, the cylinder being fixedlymounted on the side wall, the cylinder having a closed end and anapertured wall at the other end, the piston being slidably mountedwithin the cylinder, the piston rod extending through the apertured wallof the cylinder, the rod having a free end, the bottom wall having apost extending upwardly therefrom, the free end of the rod beingconnected to the post to reciprocate the rod and piston upon rotation ofthe bottom wall, the spring means comprising a coil spring surroundingthe rod within the cylinder, one end of the spring bearing against thepiston and the other end bearing against the apertured wall, the springbeing compressed upon reciprocation of the piston in the cylinder toenlarge the chamber, the spring effecting pressurization of the liquidin the chamber when compressed, said first conduit having one endconnected to the cylinder adjacent the closed end and the other endresting on the bottom wall of the container, the reciprocation of thepiston drawing the liquid into the chamber, said check valve allowingfree flow of the liquid into the cylinder-and allowing very restrictedflow back into the container, and said second conduit having one endconnected to the cylinder adjacent the closed end and the other endconnected to the discharg means 30. A dispensing container for liquids,said container having a side wall and end closure means on opposite endsthereof, one of said end closure means being rotatable relative to theside wall, a cylinder carried by the side wall within the container, apiston slidably mounted within the cylinder and defining withthecylinder a chamber for liquid to be dispensed, a piston rod connected atone end thereof to said piston and extending axially from said cylinderand connected at its other end to said rotatable end closure means sothat rotation of said rotatable end closure means causes relativereciprocation between said piston and cylinder in a direction to enlargesaid chamber, resilient means operatively connected with said piston andcylinder to cause relative reciprocation therebetween in a direction toreduce the size of said chamber and pressurize liquid therein, adischarge means on one end of said container, conduit means connectedbetween said chamber and said discharge means, and valve means in saidconduit means to control flow of liquid therethrough and operable toallow discharge of said liquid through said dispenser means by thepressure of the resilient means.

31. The container'as in claim 30 wherein the cylinder has one closed endand another end enclosing the piston rod, the resilient means being acoil spring surrounding the piston rod and having one end bearingagainst the piston and a second end bearing against the 1 5 enclosingend of the cylinder and being compressed by the reciprocation of thepiston 32. The container as in claim 31 wherein a first conduit isconnected to the cylinder adjacent a closed end thereof, the firstconduit having a free end resting on the bottom of the container, thefirst conduit having a check valve therein at the connection with thecylinder, and said conduit means is connected to the cylinder adjacentthe closed end. 3

33. A dispensing container for liquid, said container having a side walland opposite ends, a liquid dispenser on one end of the container, 3cylinder mounted within the container for reciprocating movement in thecontainer, a piston in the cylinder and defining with the cylinder achamber for liquid to be dispensed, spring means engaged between thepiston and cylinder urging the cylinder in a direction relative to thepiston to reduce the size of the chamber, a piston rod connected at oneend to the piston and extending axially from the cylinder at its otherend, a manually operated rotatable actuating means carried by thecontainer extemally thereof, said other end of said piston rod connectedto said actuating means to secure said piston against reciprocation,interengaged cam means operatively connected with said rotatableactuating means and said cylinder to cause reciprocation of saidcylinder in a direction to compress said spring and enlarge said chamberwhen said actuating means is rotated, first conduit means connected withsaid cylinder in communication with said chamber, check valve means insaid first conduit means to enable flow through said conduit means intosaid chamber when said actuating means is rotated to enlarge saidchamber and to prevent reverse flow therethrough, second conduit meansconnected at one end thereof with said cylinder in communication withsaid chamber and connected at its other end with said dispenser, andnormally closed manually operated valve means in said second conduitmeans to preclude flow of liquid from said chamber to said dispenserwhen said valve is closed and operable to allow flow from said chamberto said dispenser when said valve is open and said spring expands topressurize liquid in said chamber.

1. A dispensing container for liquids, said container having a side walland opposite ends, a liquid dispenser on one end of said container, acylinder mounted in said container, a piston in the cylinder mounted forrelative reciprocation between the piston and cylinder, said piston andcylinder defining a chamber for liquid to be dispensed, a first conduitconnected with said cylinder and in communication with said chamber,check valve means in said first conduit to enable flow through saidconduit to said chamber and prevent reverse flow therethrough, a secondconduit connected at one end thereof with said cylinder in communicationwith said chamber and connected at its other end with said dispenser, amanually operated, normally closed valve means in said second conduit tonormally prevent flow of liquid from said chamber and operable to enableflow from said chamber to said dispenser, a spring means engaged betweensaid piston and cylinder to urge relative reciprocation between saidpiston and cylinder to pressurize liquid in said chamber and dispensesaid liquid through said dispenser when said valve in said secondconduit is open, manually operable, rotatable operating means carried bysaid container externally thereof, a piston rod connected at one endthereof to said piston and extending axially from said cylinder andconnected at its other end to said operating means, so that relativerotation between said container and said operating means causes relativereciprocation between said piston and cylinder to compress said springand enlarge said chamber to draw liquid thereinto for subsequentdispensing of said liquid when said manually operated valve is openedand said spring expands to pressurize the liquid in said chamber.
 2. Adispensing container as in claim 1, wherein the opposite ends of thecontainer comprise top and bottom parts of the container, one of saidparts comprising the rotatable operating means.
 3. The container as inclaim 2 wherein adjustment means is associated with the rotatable partto limit the rotation to dispense a measured quantity of the liquid. 4.The container as in claim 3 wherein the rotatable part is the top part,the adjustment means is a lever pivotally mounted on the top part, thelever engaging indicating means on the top part and stopping rotation ofthe top part at a preset point in accordance with the indicating means,and means operatively connected with the top part to return the top partto original position.
 5. The container as in claim 3 wherein therotatable part is the top part, indicia carried by the top part toindicate measured quantities, notches in the top part adjacent eachindicia, the top part having an opening therein, a lever having a pinadjacent one end, the pin being received in the opening thus pivotallymounting the lever on the top part, the lever having a rib adjacent theother end, the rib engaging in the notches, the lever engaging a stop onthe container to limit the rotation of the top part and thus limit theamount of liquid in the chamber to a pre-set quanity and resilient meansoperatively connected with the top part to return the top part tooriginal position.
 6. The container as in claim 3 wherein the containeris provided with a cap and the top part is mounted on the cap androtatable in relation tHereto, a slotted tube mounted on the cap, aspring within the slotted tube, the top part having a pin extendingtherefrom and through the slot into the tube, the adjustment meanscomprising a lever pivotally mounted on the top part, indicia means onthe top part, notches in the top part adjacent each indicia, the leverhaving a rib thereon engaging in the notches, the lever being set in thedesired notch and the top part being rotated, the lever engages theslotted tube to stop the rotation of the top part thus effectingmovement of one of the members to draw into the chamber the desiredquantity of liquid, upon release of the top part the spring will returnthe top part to original position and the desired quantity dispensedthrough the discharge means.
 7. The container as in claim 2 wherein thecontainer is a bottle having an elongated neck and a mouth, a capcovering the mouth, the cylinder and piston being within the neck, theoperating means comprising a stationary cam mounted on the underside ofthe cap and a rotatable cam having a face complementary to thestationary cam, the piston rod extending upwardly through the cap andconnected with the top part, said top part being rotatable, the cylinderbeing within the rotatable cam and reciprocated by the rotation of thecam, the piston rod extending through the rotating cam and into thecylinder, the spring means comprising a coil spring within the cylinder,one end of the spring bearing on the cylinder and the other end bearingon the piston, said first conduit connected at one end to the cylinderand the other end being on the bottom of the container, the top parthaving indicia thereon indicating predetermined quantities of liquid,notches on the top part adjacent each indicia, a lever pivotally mountedon the top part, the lever being mounted at one end thereof and having arib at the other end, the rib engaging in one of the notches to set thequantity, a tube mounted on the cap and having a slot therein, a coilspring within the tube, the top part having a pin extending downwardlytherefrom and into the slot, the pin being in engagement with the coilspring of the tube at one end thereof, said cams reciprocating thecylinder upon rotation of the top part to draw liquid into the cylinder,said lever engaging one end of the tube to stop rotation of the top partwhen the predetermined quantity is drawn into the cylinder, and said toppart, when released, returned to its original position by the coilspring in the tube, and upon operation of the valve in the secondconduit, such predetermined quantity will be dispensed from thecylinder.
 8. The container as set forth in claim 2 wherein the bottompart is the operating means.
 9. The container as set forth in claim 8wherein the piston is supported in a non-reciprocatory position by thebottom part.
 10. The container as in claim 9 wherein the piston has acam member associated therewith, the cam being rotated by the bottompart.
 11. The container as in claim 9 wherein the top part has a guidemeans extending downwardly therefrom into the container, the cylindermember having a cooperating guide means thereon, the guide meansallowing reciprocation of the cylinder but preventing rotation thereof.12. The container as in claim 9 wherein the top part supports thecylinder, the cylinder being reciprocated relative thereto.
 13. Thecontainer as in claim 12 wherein the cylinder has a cam memberassociated therewith, the cam being reciprocated with the cylinder. 14.The container as in claim 2, wherein the operating means comprisescooperative cam members associated with the piston and cylinder.
 15. Thecontainer as in claim 14 wherein the cam member associated with thepiston member is rotated by the bottom part.
 16. The container as inclaim 14 wherein the cam member associated with the cylinder isreciprocated by the rotation of the cam member associated with thepiston.
 17. The container as in claim 16 wherein the cylinder isreciprocated anD moved away from the piston by the rotation of the cammember associated with the piston thus enlarging the chamber and drawingin the fluid into the chamber from the container.
 18. The container asin claim 1 wherein the first conduit has a free end in the bottom of thecontainer.
 19. The container as in claim 18 wherein the check valvemeans has means thereon allowing slow by-pass of the liquid from thechamber to the container when any liquid remains in the chamber after adispensing operation.
 20. The container as in claim 19 wherein the checkvalve comprises a poppet valve having a bevel face and reciprocable in aconically shaped valve housing, the bevel face being substantiallycomplementary to the conical shape but allowing by-pass of any liquidleft in the chamber to return to the container when the container is notin use.
 21. The container as in claim 19 wherein the check valvecomprises a ball reciprocable in a conically shaped valve housing, theball having minute depressions on the surface thereof, the depressionsallowing by-pass of any liquid left in the chamber to return to thecontainer when the container is not in use.
 22. The container as inclaim 2 wherein valve operating means for the manually operated valvemeans extends above the top part, the top part having a locking meansthereon, the locking means engaging the valve operating means andpreventing operation thereof.
 23. The container as in claim 2 whereinthe piston rod is mounted on the bottom part and rotated thereby,operating means including a first cam mounted on the bottom part androtated therewith, the cylinder is carried by the top part, a second camassociated with the cylinder and operatively interengaged with the firstcam, the second cam being reciprocated by the rotation of the first camand reciprocation of the second cam reciprocating the cylinder, thecylinder having an extension thereon surrounding the piston rod andbeing reciprocated with the cylinder relative to the rod, the springmeans comprises a coil spring surrounding the piston rod with one endbearing against the piston and the other end bearing against theextension of the cylinder, the spring being compressed uponreciprocation of the cylinder said first conduit having a free endresting on the bottom of the container, the reciprocation of thecylinder drawing the liquid within the container into the chamber whereit is placed under the pressure of the compressed spring, and said checkvalve in the conduit holding the liquid in the chamber until operationof the manually operated valve means to discharge the liquid from thechamber under the pressure of the spring.
 24. The container as in claim2 wherein the container has a cover thereon, the piston and cylinderbeing mounted on the underside of the cover, the top part being mountedon the outside of the cover, the piston rod extending through the coverand connected to the top part, rotation of the top part rotating thepiston, and operative means connected with the piston and the cylinderand being rotated by the rotation of the piston and reciprocating thecylinder relative to the piston.
 25. The container as in claim 24wherein the operative means comprises a first cam stationarily mountedon the under side of the cover, and a second cam rotated by the pistonrod and the top part, the rotation of the second cam causingreciprocation of the cylinder through the reaction of the two camsrelative to one another.
 26. The container as in claim 24 wherein thepiston rod is of a square shape with the free end seated in a socket inthe top part, the cover having a round opening through which the rodextends, the operative means comprises a first cam attached to the underside of the cover, the first cam having a round opening extendingtherethrough and coinciding with the opening in the cover, the cylinderhaving an extension thereon extending into the first cam and beingrotated relative thereto by the piston rod, a second cam surrounding thecYlinder and rotated by the piston rod with the extension, thecomplementary surfaces of the cams causing reciprocation of the secondcam relative to the first cam, the reciprocation of the second camcausing reciprocation of the cylinder relative to the piston and drawingliquid into the chamber, and said discharge means being on the top partto discharge the liquid in the chamber.
 27. The container as in claim 26wherein the spring means comprises a coil spring within the cylinder,the cylinder having a closed base at the extension, the spring havingone end bearing upon the base and the other end bearing upon the piston,the spring being compressed by the reciprocation of the cylinderrelative to the piston.
 28. The container as in claim 2 wherein thecontainer has an open mouth, a cover sealing the mouth, the top partbeing mounted on the outside of the cover, the top part being rotatedrelative to the container, the cylinder and piston being mounted on theunder side of the cover, the cylinder being reciprocated by the rotationof the top part, the operating means including a first cam fixedlymounted on the underside of the cover, and a second cam rotated by therotation of the top part, the two cams having complementary engagingsurfaces, the piston rod having a square cross section and extendingthrough the cover, the top part having a socket therein receiving thefree end of the rod, the cover having a round opening therein, the firstcam having a round opening therethrough and coinciding with the openingin the cover, the rod extending through the openings and being rotatabletherein, the cylinder having a base and an extension extending upwardlyfrom the base, the extension having a square opening therethrough, therod extending through the square opening and rotating the cylinder uponrotation of the rod, the second cam surrounding the cylinder and rotatedtherewith, the rotation of the second cam and cylinder reciprocating thecylinder relative to the piston, the spring means comprising a coilspring mounted within the cylinder, one end of the spring bearingagainst the base and the other end bearing against the piston and beingcompressed by the reciprocation of the cylinder, said first conduithaving one end connected to one end of the cylinder and a free endresting on the bottom of the container, and said check valve being insaid one end, the liquid being drawn into the chamber by thereciprocation of the cylinder and placed under pressure therein by thecompression of the spring.
 29. The container as in claim 1 wherein thecontainer comprises a side wall, a top wall and a rotatable bottom wall,the cylinder being fixedly mounted on the side wall, the cylinder havinga closed end and an apertured wall at the other end, the piston beingslidably mounted within the cylinder, the piston rod extending throughthe apertured wall of the cylinder, the rod having a free end, thebottom wall having a post extending upwardly therefrom, the free end ofthe rod being connected to the post to reciprocate the rod and pistonupon rotation of the bottom wall, the spring means comprising a coilspring surrounding the rod within the cylinder, one end of the springbearing against the piston and the other end bearing against theapertured wall, the spring being compressed upon reciprocation of thepiston in the cylinder to enlarge the chamber, the spring effectingpressurization of the liquid in the chamber when compressed, said firstconduit having one end connected to the cylinder adjacent the closed endand the other end resting on the bottom wall of the container, thereciprocation of the piston drawing the liquid into the chamber, saidcheck valve allowing free flow of the liquid into the cylinder andallowing very restricted flow back into the container, and said secondconduit having one end connected to the cylinder adjacent the closed endand the other end connected to the discharge means.
 30. A dispensingcontainer for liquids, said container having a sidE wall and end closuremeans on opposite ends thereof, one of said end closure means beingrotatable relative to the side wall, a cylinder carried by the side wallwithin the container, a piston slidably mounted within the cylinder anddefining with the cylinder a chamber for liquid to be dispensed, apiston rod connected at one end thereof to said piston and extendingaxially from said cylinder and connected at its other end to saidrotatable end closure means so that rotation of said rotatable endclosure means causes relative reciprocation between said piston andcylinder in a direction to enlarge said chamber, resilient meansoperatively connected with said piston and cylinder to cause relativereciprocation therebetween in a direction to reduce the size of saidchamber and pressurize liquid therein, a discharge means on one end ofsaid container, conduit means connected between said chamber and saiddischarge means, and valve means in said conduit means to control flowof liquid therethrough and operable to allow discharge of said liquidthrough said dispenser means by the pressure of the resilient means. 31.The container as in claim 30 wherein the cylinder has one closed end andanother end enclosing the piston rod, the resilient means being a coilspring surrounding the piston rod and having one end bearing against thepiston and a second end bearing against the enclosing end of thecylinder and being compressed by the reciprocation of the piston. 32.The container as in claim 31 wherein a first conduit is connected to thecylinder adjacent a closed end thereof, the first conduit having a freeend resting on the bottom of the container, the first conduit having acheck valve therein at the connection with the cylinder, and saidconduit means is connected to the cylinder adjacent the closed end. 33.A dispensing container for liquid, said container having a side wall andopposite ends, a liquid dispenser on one end of the container, acylinder mounted within the container for reciprocating movement in thecontainer, a piston in the cylinder and defining with the cylinder achamber for liquid to be dispensed, spring means engaged between thepiston and cylinder urging the cylinder in a direction relative to thepiston to reduce the size of the chamber, a piston rod connected at oneend to the piston and extending axially from the cylinder at its otherend, a manually operated rotatable actuating means carried by thecontainer externally thereof, said other end of said piston rodconnected to said actuating means to secure said piston againstreciprocation, interengaged cam means operatively connected with saidrotatable actuating means and said cylinder to cause reciprocation ofsaid cylinder in a direction to compress said spring and enlarge saidchamber when said actuating means is rotated, first conduit meansconnected with said cylinder in communication with said chamber, checkvalve means in said first conduit means to enable flow through saidconduit means into said chamber when said actuating means is rotated toenlarge said chamber and to prevent reverse flow therethrough, secondconduit means connected at one end thereof with said cylinder incommunication with said chamber and connected at its other end with saiddispenser, and normally closed manually operated valve means in saidsecond conduit means to preclude flow of liquid from said chamber tosaid dispenser when said valve is closed and operable to allow flow fromsaid chamber to said dispenser when said valve is open and said springexpands to pressurize liquid in said chamber.